diff --git a/extensions/tlon/src/account-fields.ts b/extensions/tlon/src/account-fields.ts
index 6eea0c58af1..cbddd1d37b3 100644
--- a/extensions/tlon/src/account-fields.ts
+++ b/extensions/tlon/src/account-fields.ts
@@ -6,6 +6,7 @@ export type TlonAccountFieldsInput = {
   groupChannels?: string[];
   dmAllowlist?: string[];
   autoDiscoverChannels?: boolean;
+  ownerShip?: string;
 };
 
 export function buildTlonAccountFields(input: TlonAccountFieldsInput) {
@@ -21,5 +22,6 @@ export function buildTlonAccountFields(input: TlonAccountFieldsInput) {
     ...(typeof input.autoDiscoverChannels === "boolean"
       ? { autoDiscoverChannels: input.autoDiscoverChannels }
       : {}),
+    ...(input.ownerShip ? { ownerShip: input.ownerShip } : {}),
   };
 }
diff --git a/extensions/tlon/src/channel.ts b/extensions/tlon/src/channel.ts
index 4eeca78086b..d7bced25c6d 100644
--- a/extensions/tlon/src/channel.ts
+++ b/extensions/tlon/src/channel.ts
@@ -86,6 +86,7 @@ type TlonSetupInput = ChannelSetupInput & {
   groupChannels?: string[];
   dmAllowlist?: string[];
   autoDiscoverChannels?: boolean;
+  ownerShip?: string;
 };
 
 function applyTlonSetupConfig(params: {